Bicycle-pedal



C. D. WRIGHT.

BICYCLE PEDAL.

APPLICATION FILED AUGJB, 1919.

Patented Oct. 11, 19211.

. INVENTOR. C. 0 WRIGHT.

ATTORNEY.

in the machine.

varying positions.

ci-rns'rnn n: WRIGHT, or DENVER, COLORADO.

l emes-genie.

naeaeae,

Ta 0522mm a: ay aomma Be it known that I, Crrnsrnn D.

Denver, inthe county of Denver an'dfState of Colorado, have inventedcertain new and useful Improvements in Bicycle-Pedals, of which'thefollowing is a specification.

This invention relates to improvements in bicycle pedals and its objectresides in the provision of means for automatically adjusting the pedalsof a bicycle in theproper po:

sition to receive thefeet of a rider in mounty invention is particularlyadapted for use on bicycles equipped with a so-called coaster brakewhich permits of a free movement'of the driving shaft of the machinewhen the pedals at the'ends of the oppositely extending cranks thereofare not sub- I jected to impellent. pressure.

It is well-known that when a bicycle of this type is moved along a roadbefore mounting, the frictional contact of the crank shaft with itshearings will cause it to rotate at intervals and place the pedals inThe proper position of the" shaft for mounting the bicycle is with itspedal at the side of the machine opposite that at which the rider ispositioned, uppermost,

and it is this osition of the crank shaft that is automatica lymaintained by the use of my invention.

With the above object in view, my invention consists in placing at theend of one of bicycle, an overbalancing weight either by providingpedals of different sizes or proportions orby securing a weight to oneof the pedals exclusive of the other, or by attaching to the two pedalsunequal weights of suitable form and construction.

It will be readily understood that when the crank-shaft of a bicycle towhich my invention isapplied, is free to rotate in-its bearings, thepedal carrying the greater weight will overbalancethe other and by forceof gravity move its crank to a downwardly extending position therebyplacing the opposite crank with its pedal in the position desirable inmounting the machine.

When the weights are applied beneath the pedals they have the additionaladvantage.

ofholding the pedals constantly in the proper position to receive thefeet of the rider and when the weights are detachably Wiucrrr, a citizenof the United States, residingat .tional elevation of the hub of theSpecification of Letters 1 ate11't. Pgttgnted 1 I 3 Appli tion filedAugust 13, 1919; Serial No. 317,291. 1

secured to" the pedals they can be interchanged topermit of mountingkthemachine from either side or they maybe] changed fromoneside of thepedals to the other to equalize wear of those parts of the pedals W twhic he eet f he; rider come in cOn-,

tact;

The means for attachingthe weights to the pedals may vary in accordancewith the construction ofv the same, it being preferred to provide forthis purpose a spring-clip adapted to clampingly embrace the central hubof the pedal by. which it is mounted upon the pin at the end of itscrank.

An embodiment of my invention is shown in the accompanying drawings inthe various views of which like nated, and in which-- Figure 1represents va side elevation of a bicycle of conventional constructionto which my inventioh is applied;

' Fig. 2, a transverse section through one of the pedals of the bicycle,drawn to an enlarged scale and showing the application of a detachableweight thereto;

Fig. 3,.a still further enlarged, perspective view of the weight, andFig. 4E, a secrear wheel of the bicycle and the therewith associatedparts of the coaster brake, alsodrawn to a larger scale.

Referring to the drawings by numerical reference characters 2 designatesthe frame of a bicycle provided-as usual with a bear ing 3 for thedriving crank shaft.

A coaster brake 18 of conventional construction is applied to the hub 16of the rear wheel 17 of the bicycle to permit of a free movement of thewheel with relation to the driving mechanism, when the pedals on thecrank shaft are not subjected to impellent pressure.

i The shaft has at its end oppositely eX- tending cranks 5 provided withoutwardly projecting pins 6 upon which the pedals 7 arerotatablymounted.

The pedals may be of any suitable consitely extending crank at the farside of the parts are similarly des1g-- 7 same, thereby placing thelast-mentioned 7 erence character 13 designatesthe body of Patent is:

the Weight, and 14 the spring-clip by which it is. attached to the hubof the pedal.

Having thus described my invention What I claim and desire to. secure byLetters 1. In a bicycle of the character described, the combination ofthe rotary driving shaft, a coaster transmission between the shaft andthe driven Wheel, and oppositely extending unequally Weighted pedalcranks at the ends of the shaft.

2. In a bicycle of the character described, the combination of therotary driving shaft, a .coaster transmission between the shaft and-thedriven Wheel, oppositely extending cranks at the ends of the shaft,pedals at the ends of the cranks, and Weights on said pedals, the Weighton the pedal of one of the cranks overbalancing that on the pedal of theother.

In testimony whereof I have aflixed my signature.

CHESTER D. WVRIGHT.

